Terrazzo strip



H. L. FINK TERRAZZO STRIP Jan. 1, 1929.

Filed Nov. 12, 1927 Patented Jan. 1, 1929.

sa'rs HARRY L. FINK, OF NEW YORK, N. Y.

TERRAZZO STRIP.

Application filed November 12, 1927. Serial No. 232,733.

The subject of this invention is a novel and improved dividing orpattern forming strip such as is used for wall structures, for instanceterrazzo floors, where a variegated design is to be exposed on the art,is laid during the laying of the floor.

and forms an inbuilt part of the completed floor.

One of the objects of the present invention is to provide a terrazzostrip, wihch may be cheaply formed, as by a stamping operation, forinstance out of thin sheet brass; and which, while having elementsdisplaced from the general plane of the strip, for interlocking with theplastic material on one or both sides of the strip, will present thesedisplaced elements non-integrally, yet as securely and rigidly in placeas if unitary with the strip, to all practical intents and purposes.

Another object of the invention is to provide a terrazzo strip as above,made up of several pieces, of which one is a main web or partitionstrip, and another or others are elements secured to the strip, andpreferably secured by tongue-and-slot engagement, so as to, project aswings or tabs at oppositesides of the strip.

Another object is to provide'a terrazzo strip comprising a main web orpartition strip and auxiliary or non-unitary tab or wing elements,whereby interlocking of the entire strip with the plastic material willbe brought about by its pocketing within recesses established by thestrip as the result of formations of portions of the complete strip,with such formations preferably existing so as to assist in the easy andsecure inter-attachment of the strip element and its tab or wingelements.

' Various other objects and advantages of the invention than thosehereinabove mentioned will be specifically pointed out or will'bo'apparent hereinafter in the course of the below detailed descriptionof the forms of the invention shown, in the accompanying drawing, aspreferred ones of the various possible embodiments of the invention; itbeing understood, naturally, that such forms are merely illustrative ofsome of the many possible combinations and arrangements of parts wellcalculated to attain the objects of the invention.

' In said drawing:

Fig. 1 is a perspective view showing a portion of a terrazzo stripincorporating one form of the invention;

Fig. 2 is a transverse sect-ion taken through the strip member andsubstantially centrally of a tab or wing element;

Fig. 3 is a fragmentary side elevation of the strip member, showing aslot forming part of the mounting means for the tab or wigg element atthe location of said slot; an

Fig. 4 is a top plan view of one of said tab or wing elements. I

In the form of the invention thus illustrated, the strip member,hereinafter called the strip, indicated at 5, is provided with aplurality of rectangular through slots 6.

As indicated at Fig. 1., and as clearly shown in Fig. 2, these slots,one of which is best shown in Fig. 3, mark the locations of the tab orWing elements, hereinafter called the anchors, applied to the strip asseparate pieces.

Each such anch r is here a flat plate 7 having a width 7 a substantiallyequal to the length of a slot 6 and a thickness 7 substantially equal tothe height of such slot. This anchor has struck from it three internaltongues, as illustrated in Fig. a, two of which tongues, 8, have theirfree end portions on opposite sides of and facing the third tongue 9.The free ends of these tongues define two spaced parallel straight lines10, which lines are spaced apart a dis 'tance less than the thickness ofstrip 5, when the tongues 8 and 9 are uniplanar with the main portion ofanchor 7, that is, before such tongues have been bent or sprung up asshown in Figs. 1 and 2.

These tongues Sand 9 may be springbiased out of such uniplanardisposition relative to the main portion of the anchor 7 by which theyare carried; and in that case, are preferably thus biased so as to tendto assume extensions of somewhat less angularity to said main portion,than as shown in F 2, whereby an anchor 7 may be easily and quicklymounted on a strip 5, by way of a slot 6, by merely forcing the anchoredgewise through the slot with say the edge marked 7 in Fig. 4 theleading edge, and

whereby thereupon, and as soon as the free ends of tongues 8 come upagainst the near side of the strip and are forced slightly against suchside, the free end of the tongue 9 snaps upwardly, to result in the freeends of all the tongues positioning themselves to coact wedgingly onopposite sides of the strip to dispose and secure the main portion ofthe anchor perpendicular to the strip as shown in Figs. 1 and 2.

Of course, an anchor 7 and its tongues 8 and 9, or equivalents, may alsobe made of non-elastic flexible material, as soft brass, even in thecase of the form of the invention illustrated. In that case, of course,the tongue or tongues or equivalents which, must pass through a slot- 6or equivalent in first positioning the tab or wing carrying auXiliazryon the strip, are bent toward parallelism with the main portion of suchauxiliary suffici ent-ly not to interfere with such first positioning';and after this first positioning, said tongue or tongues are bent awayfrom parallelism' with the main portion of the auxiliary, to coact withanother or other tongue or tongues or equivalents, in setting up thewedging action described.

Note that recesses for receiving portions of the plastic material, andthus increasing the interlock function of the tab or wing elements andhence of the entire terrazzo strip of the present invention, areprovided, in the illustrated form of the invention, by recesses orpockets opposite a tongue face, and", on the other side of the anchor,between tongue faces, as indicated respectively at 11 in Fig. 2 and 12in Fig. 1. And as will be seen from Fig. 4, these recesses are in thenature of what may be loosely called corru-- gations, particularly on aside of strip 5 against which a plurality of spaced tongues (here thetongues 8) are wedged.

Inasmuch as many changes could be made in the above construction, andmany apparently widely diflerent embodiments of the invention could bemade without departing from the scope thereof, it is intended that allmatter contained in the above description or shown in the accompanyingdrawing shall be into 'preted as illustrative and not in a limitingsense.

I claim:

1. A terrazzo strip or analogous structure comprising a main striphaving slots, and separate anchor pieces extending through the slots andprojecting at opposite sides of the main strip, the anchor pieces havingintegral formations engaging opposite faces of the main strip andretaining them in position.

2. A terrazzo strip or analogous structure comprising a main striphaving slots, and separate anchor pieces extending through the slots andprojecting at opposite sides of the main strip, the anchor pieces havingintegral resilient formations engaging opposite faces of the main stripand retaining them in position.

3. A terrazzo strip or analogous structure comprising a main striphaving slots, and separate anchor pieces extending through the slots andprojecting at opposite sides of the main strip, the anchor pieces havingin tegral formations engaging opposite faces of the main strip andretaining them in position, said formations being resiliently oined inthe anchor pieces whereby they are displaced in the act of insertion ofsaid pieces and then assume the stated positions of engagement with themain strip.

A- A terrazzo strip or analogous structure comprising a. main flat sheetmetal strip having spaced slots therethrough, and separate anchor piecesof generally flat sheet metal entendin throu h the slots andarojectingat opposite sides of the main strip,

the anchor pieces having integral formations engaging opposite faces ofthe main strip and retaining them in position.

5. A terrazzo strip or analogous structure comprising a main flat sheetmetal strip having spaced slots therethrough, and separate anchor piecesof generally flat sheet metal extending through the slots and projectingat opposite sides of the main strip, the anchor pieces havingintegralresilient formations engaging opposite faces of the main strip andretaining them in position.

6. A terrazzo strip or analogous structure comprising a main flat sheetmetal strip having spaced slots therethrough, and separate anchor piecesof generally fiat sheet metal extending through the slots and projectingat opposite sides of the main strip, the an chor pieces having integralformationsengaging opposite faces of the main strip and retaining themin position, said formations being resiliently joined to the anchorpieces whereby they are displaced in the act of insert-ion of saidpieces and then assume the stated positions of engagement with the mainstrip- 7. A terrazzo strip or analogous structure comprising a main flatsheet metal strip'having spaced slots therethrough, and separate anchorpieces of generally flat sheet metal extending through the slots andprojecting at opposite sides of the main strip, the anchor pieces havingintegral tongues at opposite sides of the main strip, the ends of thetongues being displaced from the plane of the anchors and retaining thelatter in position by engagement with the main strip.

8-. A terrazzo strip'or analogous structure comprising a main flat sheetmetal strip having spaced slots therethrough, and separate anchor piecesof generally flat sheet metal extending through the slots and projectingat opposite sides of the main strip, eachanchor piece having tongueslocated at opposite sides of the main strip, bent angnlarly in relationthereto, and retaining the anchor by engagement of their ends with themain strip faces.

9. A terrazzo strip or analogous structure comprising a main flat sheetmetal strip having spaced slots therethrough, and separate anchor piecesof generally flat sheet metal extending through the slots and projectingat opposite sides of the main strip, each anchor piece having tongueslocated at opposite sides of the main strip, bent angularly in relationthereto, and retaining the anchor by wedging engagement of their endswith the main strip faces.

10. A terrazzo strip or analogous structure comprising a main flat sheetmetal strip having spaced slots therethrough, and separate anchor piecesof generally flat sheetrmetal extending through the slots and projectingat opposite sides of the main strip, each anchor piece having at oneside of the main strip spaced locking formations, and at the other sidea locking formation interspaced with those first-named, said formationsretaining the anchor in place by engagament with opposite faces of themain strip.

11. A terrazzo strip or analogous structure comprising a main flat sheetmetal strip having spaced slot-s therethrough, and separate anchorpieces of generally fiat sheet metal extending through the slots andprojecting at opposite sides of the main strip, each anchor piece havingat one side of the main strip spaced locking formations, and at theother side a locking formation interspaced with those first-named, saidformations consisting of tongues out in the anchor and displaced fromthe plane thereof.

12., A terrazzo strip or analogous structure comprising a main flatsheet metal strip havingspaced slots therethrough, and separate anchorpieces of generally flat sheet metal extending through the slots andprojecting at opposite sides of the main strip, each anchor piece havingat one side of the main strip spaced locking formations, and at theother side a locking formation interspaced with those first-named, saidformations consisting of resilient tongues cut in the anchor anddisplaced from the plane thereof.

In testimony whereof I affix my signature.

HARRY L. FINK.

